diff --git a/configure b/configure index ff0f8b915c..bd0d9dbd7e 100755 --- a/configure +++ b/configure @@ -6066,7 +6066,7 @@ case "$target_name" in ;; m68k) bflt="yes" - gdb_xml_files="cf-core.xml cf-fp.xml" + gdb_xml_files="cf-core.xml cf-fp.xml m68k-fp.xml" ;; microblaze|microblazeel) TARGET_ARCH=microblaze diff --git a/gdb-xml/m68k-fp.xml b/gdb-xml/m68k-fp.xml new file mode 100644 index 0000000000..64290d1630 --- /dev/null +++ b/gdb-xml/m68k-fp.xml @@ -0,0 +1,21 @@ + + + + + + + + + + + + + + + , + + diff --git a/target/m68k/helper.c b/target/m68k/helper.c index 8bfc8814a0..f2de6b5097 100644 --- a/target/m68k/helper.c +++ b/target/m68k/helper.c @@ -102,6 +102,48 @@ static int cf_fpu_gdb_set_reg(CPUM68KState *env, uint8_t *mem_buf, int n) return 0; } +static int m68k_fpu_gdb_get_reg(CPUM68KState *env, uint8_t *mem_buf, int n) +{ + if (n < 8) { + stw_be_p(mem_buf, env->fregs[n].l.upper); + memset(mem_buf + 2, 0, 2); + stq_be_p(mem_buf + 4, env->fregs[n].l.lower); + return 12; + } + switch (n) { + case 8: /* fpcontrol */ + stl_be_p(mem_buf, env->fpcr); + return 4; + case 9: /* fpstatus */ + stl_be_p(mem_buf, env->fpsr); + return 4; + case 10: /* fpiar, not implemented */ + memset(mem_buf, 0, 4); + return 4; + } + return 0; +} + +static int m68k_fpu_gdb_set_reg(CPUM68KState *env, uint8_t *mem_buf, int n) +{ + if (n < 8) { + env->fregs[n].l.upper = lduw_be_p(mem_buf); + env->fregs[n].l.lower = ldq_be_p(mem_buf + 4); + return 12; + } + switch (n) { + case 8: /* fpcontrol */ + env->fpcr = ldl_p(mem_buf); + return 4; + case 9: /* fpstatus */ + env->fpsr = ldl_p(mem_buf); + return 4; + case 10: /* fpiar, not implemented */ + return 4; + } + return 0; +} + M68kCPU *cpu_m68k_init(const char *cpu_model) { M68kCPU *cpu; @@ -130,6 +172,9 @@ void m68k_cpu_init_gdb(M68kCPU *cpu) if (m68k_feature(env, M68K_FEATURE_CF_FPU)) { gdb_register_coprocessor(cs, cf_fpu_gdb_get_reg, cf_fpu_gdb_set_reg, 11, "cf-fp.xml", 18); + } else if (m68k_feature(env, M68K_FEATURE_FPU)) { + gdb_register_coprocessor(cs, m68k_fpu_gdb_get_reg, + m68k_fpu_gdb_set_reg, 11, "m68k-fp.xml", 18); } /* TODO: Add [E]MAC registers. */ }